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The conflict mineral: coltan mining in DR Congo and ...

In recent years the 'obscure mineral' coltan—geological name Columbite Tantalite—has become widely known and politicised for being closely connected with the violence of armed groups in the Eastern Democratic Republic of Congo (DRC). Similar to ...

Columbite Tantalite Importers – Grinding Mill China

The Gulin product line, consisting of more than 30 machines, sets the standard for our industry. We plan to help you meet your needs with our equipment, with our distribution and product support system, and the continual introduction and updating of products.

Coltan: Learning The Basics « Conflict Minerals: The …

Coltan is short for Columbite-tantalite – a black tar-like mineral found in major quantities in the Congo. The Congo possesses 80 percent of the world's coltan. When coltan is refined it becomes a heat resistant powder that can hold a high electric charge.

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Alibaba.com offers 218 columbite tantalite products. About 33% of these are other ore, 22% are mineral separator, and 1% are crusher. A wide variety of columbite tantalite options are available to you, such as fines (powder), mine, and lump.

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The association of columbite, tantalite and tapiolite in ...

Download Citation on ResearchGate | The association of columbite, tantalite and tapiolite in the Suzhou granite, China | We present the results of an investigation of the chemical composition of Nb-Ta oxide minerals from the Suzhou granitic complex, China.

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Columbite tantalite Suppliers, Columbite tantalite Exporters - Contact with the leading columbite tantalite suppliers, exporters and traders from all over the world including China, Brazil,USA,UK at

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Tantalite: Tantalite mineral information and data.

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JFG Global Limited is a leading supplier of conflict-free coltan (columbite-tantalite) to the international community. Our conflict-free coltan is mined in West Africa, and sold globally to clients in countries like China and the USA.